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karrakmc
#1 Posted : Friday, October 17, 2008 1:30:19 PM(UTC)
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Today I pulled the ceiling down in the dinette area to put insulation in and I found beads of water on the aluminum ceiling.
Any thoughts on getting rid of this water or do I just leave it and hope it evaporates,
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fastjeff
#2 Posted : Friday, October 17, 2008 11:10:15 PM(UTC)
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It's probably normal for this time of year. That's why the insulation is there.

Jeff
"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell
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jralbert
#3 Posted : Saturday, October 18, 2008 3:46:23 AM(UTC)
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If the insulation is getting soaked, you may want to switch to the foil/bubble insulation product that has been mentioned on the forum. I can't remember the name (something "tec") It is fairly cheap, easy to install, and is supposed to be quite effective.
---
I agree with Jeff - GO PHILLIES!
Joel Albert, Potomac MD
"Charlie B" - 1988 32' FBS
Twin 318's/FWC/16x15 nibral props
docked Deale, MD
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dougrose
#4 Posted : Saturday, October 18, 2008 3:05:33 PM(UTC)
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Reflectix, from Lowe's


1975 32' Flybridge Sedan, twin Perkins 6-354 diesels, 1:1.53 velvetdrives, 16 X 19 props. Merritt Island, Florida
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GB49
#5 Posted : Sunday, October 19, 2008 1:24:04 PM(UTC)
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I have factory installed vents in the ceilings. I think 2 in the salon corners and 1 or 2 in the dinette and 1 or 2 in the forward cabin ceiling. Might also be one in the head too.
They are round, louvered at about 2.5 or 3" diameter. I'm guessing they are to help circulate air.

-Karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
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Gypsy Girl
#6 Posted : Monday, October 20, 2008 2:02:27 PM(UTC)
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We have a 1972 32 foot and had the problem as well.
First we put a large dehumidifier in the cabin,made sure all the water was out of the bilge,and emptied the capture pan many times to ensure all the moisture was out of the luan paneling and other materials in our boat.(3 weeks) When no more moisture was captured in the dehumidifier we purchased 1 inch hard foam exterior 4x8 sheets of insulation from home depot...cheap...removed the ceiling panels and using liquid nails adhesive , cut and placed the foam in all voids between the structural components.We then utilized silacone to fill the space that our cuts did not fit snug.
The problem is that the moisture in the bilge is turned into molecules that air can support(humidity) and is transported to and through all the voids in the structural design of the marinette, to the upper surfaces that are a different temperature and converted again to water...or condensation.causing mold ,drips,and stains.
You have to eliminate air pockets in the hull and overheads to prevent this.
Remember to avoid long term exposure to the sealants and adhesives and allow total cure at 50 degrees or above for at least 2-3 days.
as an added precaution we put a layer of 6 mil poly on top of each ceiling panel when reinstalling
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dougrose
#7 Posted : Monday, October 20, 2008 3:49:41 PM(UTC)
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I did nearly the same on my first Marinette as Gypsy Girl. It was effective but a lot of work. The current boat has the Reflectix simply taped to the ceiling and wall panels which are then reinstalled. Seems to work well and took a fraction of the time as using hard foam.


1975 32' Flybridge Sedan, twin Perkins 6-354 diesels, 1:1.53 velvetdrives, 16 X 19 props. Merritt Island, Florida
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